/Engine/Source/Editor/UMGEditor/Public/WidgetBlueprintEditorUtils.h
static void DeleteWidgets ( [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [FWidgetBlueprintEditor](API\Editor\UMGEditor\FWidgetBlueprintEditor) > BlueprintEditor, [UWidgetBlueprint](API\Editor\UMGEditor\UWidgetBlueprint) * BP, [TSet](API\Runtime\Core\Containers\TSet)< [FWidgetReference](API\Editor\UMGEditor\FWidgetReference) > Widgets, bool bSilentDelete )